Patents by Inventor Chih-Ping Hsu
Chih-Ping Hsu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7507532Abstract: MH15 (Hn1L) is identified as an oncogene. Methods and compositions for detecting and diagnosing cancer in patients are provided, by determining the level of MH15 expression in biological samples. Also provided are methods for screening for inhibitors and moderators of MH15 expression and activity, as well as compositions comprising compounds and molecules that inhibit or moderate MH15 expression or activity, thereby treating cancer, in vivo.Type: GrantFiled: March 7, 2005Date of Patent: March 24, 2009Assignee: Medigen Biotechnology CorporationInventors: Stanley Chang, Hsun-Lang Chang, Wei-Ying Kuo, Kuo-Yen Chen, Ning-Yi Li, Chih-Ping Hsu, Pei-Hsun Ho
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Publication number: 20080233995Abstract: Techniques to more efficiently control the transmit power for a data transmission that uses a number of formats (e.g., rates, transport formats). Different formats for a given data channel (e.g., transport channel) may require different target SNIRs to achieved a particular BLER. In one aspect, individual target BLER may be specified for each format of each data channel. In another aspect, various power control schemes are provided to achieve different target SNIRs for different formats. In a first power control scheme, multiple individual outer loops are maintained for multiple formats. For each format, its associated outer loop attempts to set the target SNIR such that the target BLER specified for that format is achieved. In a second power control scheme, multiple individual outer loops are maintained and the base station further applies different adjustments to the transmit power levels for different formats.Type: ApplicationFiled: April 28, 2008Publication date: September 25, 2008Inventors: Da-shan Shiu, Serge Willenegger, Richard Chi, Parvathanathan Subrahmanya, Chih-Ping Hsu
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Publication number: 20080159373Abstract: Techniques for operating a diversity receiver are described. A user equipment (UE) may include (i) a first receive chain having an equalizer and a first rake receiver and (ii) a second receive chain having a second rake receiver. The UE may support (i) a first mode in which only the equalizer is used to process a received transmission and (ii) a second mode in which both rake receivers are used to process the received transmission. The UE may determine a first performance metric for the first mode (e.g., based on the performance of the equalizer) and a second performance metric for the second mode (e.g., based on the performance of both rake receivers or only the first rake receiver). The UE may select the first or second mode based on the performance metrics and may power down the second receive chain if the first mode is selected.Type: ApplicationFiled: December 12, 2007Publication date: July 3, 2008Applicant: QUALCOMM INCORPORATEDInventors: Ali Taha, Chih-Ping Hsu
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Patent number: 7376438Abstract: Techniques to more efficiently control the transmit power for a data transmission that uses a number of formats (e.g., rates, transport formats). Different formats for a given data channel (e.g., transport channel) may require different target SNIRs to achieved a particular BLER. In one aspect, individual target BLER may be specified for each format of each data channel. In another aspect, various power control schemes are provided to achieve different target SNIRs for different formats. In a first power control scheme, multiple individual outer loops are maintained for multiple formats. For each format, its associated outer loop attempts to set the target SNIR such that the target BLER specified for that format is achieved. In a second power control scheme, multiple individual outer loops are maintained and the base station further applies different adjustments to the transmit power levels for different formats.Type: GrantFiled: October 12, 2005Date of Patent: May 20, 2008Assignee: QUALCOMM IncorporatedInventors: Da-shan Shiu, Serge Willenegger, Richard Chi, Parvathanathan Subrahmanya, Chih-Ping Hsu
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Patent number: 7340268Abstract: The reliability of transmit power control (TPC) commands received from a transmitter is determined based on a TPC target value. The TPC target value is derived based on a TPC threshold and possibly a weight, depending on the receiver implementation. A received TPC command is considered reliable if its absolute value exceeds the TPC target value. Received TPC commands deemed as unreliable are discarded and not used for power control. Multiple TPC target values, used for detecting UP and DOWN commands, may be derived with multiple scaling factors. For a receiver in soft handover and receiving TPC commands from multiple transmitters, a different TPC target value may be derived for each transmitter. The received TPC commands for each transmitter are compared against that transmitter's TPC target value. Received TPC commands deemed as unreliable are discarded and not combined.Type: GrantFiled: June 10, 2003Date of Patent: March 4, 2008Assignee: QUALCOMM IncorporatedInventors: Hyukjun Oh, Parvathanathan Subrahmanya, Nitin Kasturi, Messay Amerga, Chih-Ping Hsu, Christopher C. Riddle, Andrew Sendonaris
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Publication number: 20070260851Abstract: Methods and apparatuses are presented for sleep optimization based on system information block SIB scheduling. A method for invoking sleep states within user equipment (UE) is presented. The method includes decoding a broadcast control channel with a cell, determining a System Information Block (SIB) schedule associated with the cell, determining a sleep time interval based upon the SIB schedule, and placing the UE in a sleep state using the sleep time intervals. An apparatus for invoking sleep states within UE is presented. The apparatus includes logic configured to decode a broadcast control channel with a cell, logic configured to determine a SIB schedule associated with the cell, logic configured to determine a sleep time interval based upon the SIB schedule, and logic configured to place the UE in a sleep state using the sleep time intervals.Type: ApplicationFiled: April 25, 2007Publication date: November 8, 2007Inventors: Ali Taha, Chih-Ping Hsu, Shawn C. Morrison, Vivek Ramachandran
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Publication number: 20070098051Abstract: A rake receiver finger assignor is configured to assign a rake receiver finger to a time offset between identified signal path time offsets in accordance with a concentration of identified signal paths from a transmitter to a rake receiver. In accordance with the exemplary embodiment, a number of identified signal paths having time offsets within a time window are observed to determine the concentration of signal paths identified by a path searcher. If the number of identified signal paths indicates a concentrated distribution of signal paths such as during a fat path condition, at least one rake finger is assigned between at a time offset between two identified signal paths.Type: ApplicationFiled: March 28, 2006Publication date: May 3, 2007Inventors: Thejaswi Bharadwaj Shesha, Brian Dong, Messay Amerga, Chih-Ping Hsu, Parvathanathan Subrahmanya, Xiaoming Zhu
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Publication number: 20060068411Abstract: MH15 (Hn1L) is identified as an oncogene. Methods and compositions for detecting and diagnosing cancer in patients are provided, by determining the level of MH15 expression in biological samples. Also provided are methods for screening for inhibitors and moderators of MH15 expression and activity, as well as compositions comprising compounds and molecules that inhibit or moderate MH15 expression or activity, thereby treating cancer, in vivo.Type: ApplicationFiled: March 7, 2005Publication date: March 30, 2006Applicant: Medigen Biotechnology CorporationInventors: Stanley Chang, Hsun-Lang Chang, Wei-Ying Kuo, Kuo-Yen Chen, Ning-Yi Li, Chih-Ping Hsu, Pei-Hsun Ho
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Publication number: 20060040698Abstract: Techniques to more efficiently control the transmit power for a data transmission that uses a number of formats (e.g., rates, transport formats). Different formats for a given data channel (e.g., transport channel) may require different target SNIRs to achieved a particular BLER. In one aspect, individual target BLER may be specified- for each format of each data channel. In another aspect, various power control schemes are provided to achieve different target SNIRs for different formats. In a first power control scheme, multiple individual outer loops are maintained for multiple formats. For each format, its associated outer loop attempts to set the target SNIR such that the target BLER specified for that format is achieved. In a second power control scheme, multiple individual outer loops are maintained and the base station further applies different adjustments to the transmit power levels for different formats.Type: ApplicationFiled: October 12, 2005Publication date: February 23, 2006Inventors: Da-shan Shiu, Serge Willenegger, Richard Chi, Parvathanathan Subrahmanya, Chih-Ping Hsu
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Patent number: 6983166Abstract: Techniques to more efficiently control the transmit power for a data transmission that uses a number of formats (e.g., rates, transport formats). Different formats for a given data channel (e.g., transport channel) may require different target SNIRs to achieved a particular BLER. In one aspect, individual target BLER may be specified for each format of each data channel. In another aspect, various power control schemes are provided to achieve different target SNIRs for different formats. In a first power control scheme, multiple individual outer loops are maintained for multiple formats. For each format, its associated outer loop attempts to set the target SNIR such that the target BLER specified for that format is achieved. In a second power control scheme, multiple individual outer loops are maintained and the base station further applies different adjustments to the transmit power levels for different formats.Type: GrantFiled: August 20, 2001Date of Patent: January 3, 2006Assignee: Qualcomm, IncorporatedInventors: Da-shan Shiu, Serge Willenegger, Richard Chi, Parvathanathan Subrahmanya, Chih-Ping Hsu
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Publication number: 20050143116Abstract: Techniques are provided to control the transmit power for data transmission on multiple transport channels having different signal quality (SIR) targets. A single SIR target is maintained for all transport channels, and this SIR target is adjusted based only on active transport channels. For each update interval, a data processor processes at least one data block received in the current update interval on at least one of the transport channels and provides the status of each received data block. A controller increases the SIR target based on an up step if any received data block is erased and decreases the SIR target based on a down step if all received data blocks are good. If any received data block is erased, the down step used to adjust the SIR target may be set to the smallest down step size required by all transport channels with erased data blocks.Type: ApplicationFiled: December 30, 2003Publication date: June 30, 2005Inventors: Chih-Ping Hsu, Parvathanathan Subrahmanya, Da-shan Shiu, Hyukjun Oh, Christopher Riddle, Nitin Kasturi
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Patent number: 6856611Abstract: Various techniques are disclosed for unambiguously determining and tracking frame offset in asynchronous wireless communication user equipment. The user equipment determines the unambiguous connection frame number of a downlink channel. The equipment then determines frame timing information for neighbor cells. The frame timing information for the primary common control physical channel and uplink dedicated physical channels is determined. The frame timing is determined as a coarse resolution frame offset in conjunction with a fine resolution chip offset. The frame numbering information for the uplink and downlink dedicated physical channels and the primary common control physical channel is also determined. Then the frame number and timing information is updated using a counter accurate to one chip resolution. The frame offset is updated if the number of chips underflows or overflows a predetermined window. Frame timing may be updated by updating only the fine chip offset or may be completely determined.Type: GrantFiled: April 11, 2003Date of Patent: February 15, 2005Assignee: Qualcomm IncorporatedInventors: Siddhartha Ray Chaudhuri, Chih-Ping Hsu, Chalapathi Rao Emani, Jeremy H. Lin, Gurdeep Singh
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Publication number: 20040166884Abstract: The reliability of transmit power control (TPC) commands received from a transmitter is determined based on a TPC target value. The TPC target value is derived based on a TPC threshold and possibly a weight, depending on the receiver implementation. A received TPC command is considered reliable if its absolute value exceeds the TPC target value. Received TPC commands deemed as unreliable are discarded and not used for power control. Multiple TPC target values, used for detecting UP and DOWN commands, may be derived with multiple scaling factors. For a receiver in soft handover and receiving TPC commands from multiple transmitters, a different TPC target value may be derived for each transmitter. The received TPC commands for each transmitter are compared against that transmitter's TPC target value. Received TPC commands deemed as unreliable are discarded and not combined.Type: ApplicationFiled: June 10, 2003Publication date: August 26, 2004Inventors: Hyukjun Oh, Parvathanathan Subrahmanya, Nitin Kasturi, Messay Amerga, Chih-Ping Hsu, Christopher C. Riddle, Andrew Sendonaris
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Publication number: 20040137860Abstract: Techniques to quickly adjust an SIR target toward a final value needed to achieve a specified target BLER for a data transmission. The outer loop may be implemented with multiple modes. The SIR target may be maintained fixed in a hold mode, adjusted in large down steps to speed up convergence in an acquisition mode, and adjusted by a small down step and a large up step for good and erased blocks, respectively, in a tracking mode. Various schemes may be used to adjust the SIR target by larger down steps in the acquisition mode. These schemes may be used even if data is transmitted intermittently, the target BLER is set to a low value, and/or one or multiple transport channels are used for data transmission. The SIR target may be boosted by a particular amount upon transitioning from the acquisition mode to the tracking mode.Type: ApplicationFiled: March 12, 2003Publication date: July 15, 2004Inventors: Hyukjun Oh, Luca Blessent, Chih-Ping Hsu, Da-Shan Shiu, Nitin Kasturi, Parvathanathan Subrahmanya
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Publication number: 20040017777Abstract: Various techniques are disclosed for unambiguously determining and tracking frame offset in asynchronous wireless communication user equipment. The user equipment determines the unambiguous connection frame number of a downlink channel. The equipment then determines frame timing information for neighbor cells. The frame timing information for the primary common control physical channel and uplink dedicated physical channels is determined. The frame timing is determined as a coarse resolution frame offset in conjunction with a fine resolution chip offset. The frame numbering information for the uplink and downlink dedicated physical channels and the primary common control physical channel is also determined. Then the frame number and timing information is updated using a counter accurate to one chip resolution. The frame offset is updated if the number of chips underflows or overflows a predetermined window. Frame timing may be updated by updating only the fine chip offset or may be completely determined.Type: ApplicationFiled: April 11, 2003Publication date: January 29, 2004Inventors: Siddhartha Ray Chaudhuri, Chih-Ping Hsu, Chalapathi Rao Emani, Jeremy H. Lin, Gurdeep Singh
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Publication number: 20030036403Abstract: Techniques to more efficiently control the transmit power for a data transmission that uses a number of formats (e.g., rates, transport formats). Different formats for a given data channel (e.g., transport channel) may require different target SNIRs to achieved a particular BLER. In one aspect, individual target BLER may be specified for each format of each data channel. In another aspect, various power control schemes are provided to achieve different target SNIRs for different formats. In a first power control scheme, multiple individual outer loops are maintained for multiple formats. For each format, its associated outer loop attempts to set the target SNIR such that the target BLER specified for that format is achieved. In a second power control scheme, multiple individual outer loops are maintained and the base station further applies different adjustments to the transmit power levels for different formats.Type: ApplicationFiled: August 20, 2001Publication date: February 20, 2003Inventors: Da-shan Shiu, Serge Willenegger, Richard Chi, Parvathanathan Subrahmanya, Chih-Ping Hsu
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Patent number: 6134434Abstract: A system and method for providing subscriber unit or base station initiated service negotiation in a wireless communication system. Message generators in the mobile switching center, base station, and subscriber unit compose messages to be transmitted in association with the service negotiation, while message processors analyze received messages in order to direct the message generators to compose the appropriate response messages. In a subscriber unit initiated service negotiation, the subscriber unit initiates service negotiation by sending a Service Request Message to the base station containing the requested service configuration. The base station then checks with the mobile switching center to ensure that the requested service configuration is authorized for use by the particular subscriber unit.Type: GrantFiled: December 8, 1997Date of Patent: October 17, 2000Assignee: QUALCOMM IncorporatedInventors: Rajeev Krishnamurthi, Bibhu P. Mohanty, Roy F. Quick, Jr., Chih-ping Hsu
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Patent number: 5862471Abstract: A method and apparatus for providing a mobile station user with information about anticipated roaming charges. The visitor communication system transmits a graded roaming signal to the mobile station user indicative of the anticipated roaming costs. The graded roaming signal is determined by contractual agreements between the visitor communication system provider and user's service provider. This information is stored in a data base at the user's home communication system and is provided to the visitor communication system upon request for authorization to provide service. The graded roaming signal is broadcast to the mobile station and displayed to allow the mobile station user to estimate the cost of the service being provided.Type: GrantFiled: January 2, 1997Date of Patent: January 19, 1999Assignee: QUALCOMM IncorporatedInventors: Edward G. Tiedemann, Jr., Chih-Ping Hsu